Analysis
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max time kernel
94s -
max time network
96s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
21-09-2021 13:18
Static task
static1
Behavioral task
behavioral1
Sample
1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe
Resource
win10-en-20210920
General
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Target
1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe
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Size
81KB
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MD5
5a8491587ab0f96ba141ae59365bc911
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SHA1
1ab2fac4f2dc92893a9f89fc6621f66bd47cb783
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SHA256
1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2
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SHA512
97e760f60e4db99983d05db69776058cf2f2c5ab98adea76000001a94a24f3b23feee4464baa23cf49dfa017e331c3b8b19c9da5b696f961f63cd65fc864c5c7
Malware Config
Extracted
C:\1rWCqamCt.README.txt
blackmatter
http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/A9K0IM6DK7ILWAV908R3
Signatures
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BlackMatter Ransomware
BlackMatter ransomware group claims to be Darkside and REvil succesor.
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Modifies extensions of user files 21 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\SubmitConnect.crw => C:\Users\Admin\Pictures\SubmitConnect.crw.1rWCqamCt 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File renamed C:\Users\Admin\Pictures\ConvertFromFind.tif => C:\Users\Admin\Pictures\ConvertFromFind.tif.1rWCqamCt 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File opened for modification C:\Users\Admin\Pictures\EditConvertTo.tiff 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File renamed C:\Users\Admin\Pictures\ReadMount.png => C:\Users\Admin\Pictures\ReadMount.png.1rWCqamCt 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File opened for modification C:\Users\Admin\Pictures\ReadMount.png.1rWCqamCt 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File opened for modification C:\Users\Admin\Pictures\SkipAdd.tiff 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File renamed C:\Users\Admin\Pictures\SkipAdd.tiff => C:\Users\Admin\Pictures\SkipAdd.tiff.1rWCqamCt 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File renamed C:\Users\Admin\Pictures\DenyCheckpoint.raw => C:\Users\Admin\Pictures\DenyCheckpoint.raw.1rWCqamCt 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File renamed C:\Users\Admin\Pictures\EditConvertTo.tiff => C:\Users\Admin\Pictures\EditConvertTo.tiff.1rWCqamCt 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File opened for modification C:\Users\Admin\Pictures\ReadSuspend.png.1rWCqamCt 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File opened for modification C:\Users\Admin\Pictures\ApproveUse.tiff 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File opened for modification C:\Users\Admin\Pictures\ApproveUse.tiff.1rWCqamCt 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File opened for modification C:\Users\Admin\Pictures\DenyCheckpoint.raw.1rWCqamCt 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File renamed C:\Users\Admin\Pictures\ReadSuspend.png => C:\Users\Admin\Pictures\ReadSuspend.png.1rWCqamCt 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File opened for modification C:\Users\Admin\Pictures\SkipAdd.tiff.1rWCqamCt 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File opened for modification C:\Users\Admin\Pictures\SubmitConnect.crw.1rWCqamCt 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File renamed C:\Users\Admin\Pictures\ApproveUse.tiff => C:\Users\Admin\Pictures\ApproveUse.tiff.1rWCqamCt 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File opened for modification C:\Users\Admin\Pictures\ConvertFromFind.tif.1rWCqamCt 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File opened for modification C:\Users\Admin\Pictures\EditConvertTo.tiff.1rWCqamCt 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File renamed C:\Users\Admin\Pictures\EnableRemove.raw => C:\Users\Admin\Pictures\EnableRemove.raw.1rWCqamCt 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe File opened for modification C:\Users\Admin\Pictures\EnableRemove.raw.1rWCqamCt 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\1rWCqamCt.bmp" 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\1rWCqamCt.bmp" 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
pid Process 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies Control Panel 3 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Control Panel\International 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Control Panel\Desktop 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Control Panel\Desktop\WallpaperStyle = "10" 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe -
Modifies registry class 20 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags splwow64.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell splwow64.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU splwow64.exe Set value (data) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff splwow64.exe Set value (data) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff splwow64.exe Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_FolderType = "{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}" splwow64.exe Set value (int) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewVersion = "0" splwow64.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_Classes\Local Settings splwow64.exe Set value (data) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots splwow64.exe Set value (data) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f4225481e03947bc34db131e946b44c8dd50000 splwow64.exe Set value (int) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1" splwow64.exe Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewID = "{82BA0782-5B7A-4569-B5D7-EC83085F08CC}" splwow64.exe Set value (data) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff splwow64.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 splwow64.exe Set value (data) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 splwow64.exe Set value (data) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff splwow64.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 splwow64.exe Set value (data) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 9e0000001a00eebbfe23000010007db10d7bd29c934a973346cc89022e7c00002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020002a0000000000efbe7e47b3fbe4c93b4ba2bad3f5d3cd46f98207ba827a5b6945b5d7ec83085f08cc20002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020000000 splwow64.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg splwow64.exe Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 splwow64.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 1592 NOTEPAD.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1740 splwow64.exe -
Suspicious use of AdjustPrivilegeToken 17 IoCs
description pid Process Token: SeBackupPrivilege 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeDebugPrivilege 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: 36 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeImpersonatePrivilege 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeIncBasePriorityPrivilege 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeIncreaseQuotaPrivilege 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: 33 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeManageVolumePrivilege 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeProfSingleProcessPrivilege 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeRestorePrivilege 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeSecurityPrivilege 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeSystemProfilePrivilege 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeTakeOwnershipPrivilege 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeShutdownPrivilege 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe Token: SeBackupPrivilege 2040 vssvc.exe Token: SeRestorePrivilege 2040 vssvc.exe Token: SeAuditPrivilege 2040 vssvc.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1740 splwow64.exe 1740 splwow64.exe 1740 splwow64.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1080 wrote to memory of 1592 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe 32 PID 1080 wrote to memory of 1592 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe 32 PID 1080 wrote to memory of 1592 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe 32 PID 1080 wrote to memory of 1592 1080 1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe 32 PID 1592 wrote to memory of 1740 1592 NOTEPAD.EXE 33 PID 1592 wrote to memory of 1740 1592 NOTEPAD.EXE 33 PID 1592 wrote to memory of 1740 1592 NOTEPAD.EXE 33 PID 1592 wrote to memory of 1740 1592 NOTEPAD.EXE 33
Processes
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C:\Users\Admin\AppData\Local\Temp\1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe"C:\Users\Admin\AppData\Local\Temp\1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.bin.sample.exe"1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1080 -
C:\Windows\SysWOW64\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" /p C:\1rWCqamCt.README.txt2⤵
- Opens file in notepad (likely ransom note)
- Suspicious use of WriteProcessMemory
PID:1592 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122883⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1740
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2040